From: Valdis.Kletnieks@vt.edu
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org,
Frederic Weisbecker <fweisbec@gmail.com>
Subject: Re: [PATCH 5/5] ring-buffer: fix printk output
Date: Wed, 29 Apr 2009 12:19:03 -0400 [thread overview]
Message-ID: <25555.1241021943@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Tue, 28 Apr 2009 23:20:00 PDT." <20090428232000.6c3d4ce1.akpm@linux-foundation.org>
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On Tue, 28 Apr 2009 23:20:00 PDT, Andrew Morton said:
> printk_once() is racy on smp and preempt btw ;)
Looks like at worst, it's prone to the usual printk racing, plus a possible
misfire causing it to print twice before shutting up? Or is there something
I'm missing here?
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next prev parent reply other threads:[~2009-04-29 16:20 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-29 4:48 [PATCH 0/5] [GIT PULL] tracing/splice/ringbuffer: updates for tip Steven Rostedt
2009-04-29 4:48 ` [PATCH 1/5] tracing: convert ftrace_dump spinlocks to raw Steven Rostedt
2009-04-29 5:07 ` Andrew Morton
2009-04-29 5:55 ` Ingo Molnar
2009-04-29 4:48 ` [PATCH 2/5] tracing: fix ref count in splice pages Steven Rostedt
2009-04-29 4:48 ` [PATCH 3/5] tracing: only add splice page if entries exist Steven Rostedt
2009-04-29 4:48 ` [PATCH 4/5] tracing: have splice only copy full pages Steven Rostedt
2009-04-29 4:48 ` [PATCH 5/5] ring-buffer: fix printk output Steven Rostedt
2009-04-29 5:20 ` Andrew Morton
2009-04-29 5:43 ` Ingo Molnar
2009-04-29 5:55 ` Andrew Morton
2009-04-29 6:09 ` Ingo Molnar
2009-04-29 6:20 ` Andrew Morton
2009-04-29 7:22 ` Ingo Molnar
2009-04-29 7:41 ` Andrew Morton
2009-04-29 9:56 ` Ingo Molnar
2009-04-29 15:09 ` Andrew Morton
2009-04-29 19:45 ` Ingo Molnar
2009-04-29 19:52 ` Andrew Morton
2009-04-29 20:11 ` Ingo Molnar
2009-04-29 16:19 ` Valdis.Kletnieks [this message]
2009-04-29 20:15 ` Ingo Molnar
2009-04-29 6:03 ` [PATCH 0/5] [GIT PULL] tracing/splice/ringbuffer: updates for tip Ingo Molnar
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